64604800

素因数分解:

$2^7\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1553}}^1$

素因数の和:1590

約数の個数: 96

約数和(自身を含む): 171981180

約数和(自身を除く): 107376380

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 640, 650, 800, 832, 1040, 1300, 1553, 1600, 1664, 2080, 2600, 3106, 3200, 4160, 5200, 6212, 7765, 8320, 10400, 12424, 15530, 20189, 20800, 24848, 31060, 38825, 40378, 41600, 49696, 62120, 77650, 80756, 99392, 100945, 124240, 155300, 161512, 198784, 201890, 248480, 310600, 323024, 403780, 496960, 504725, 621200, 646048, 807560, 993920, 1009450, 1242400, 1292096, 1615120, 2018900, 2484800, 2584192, 3230240, 4037800, 4969600, 6460480, 8075600, 12920960, 16151200, 32302400, 64604800]

約数ペア:

[(1, 64604800), (2, 32302400), (4, 16151200), (5, 12920960), (8, 8075600), (10, 6460480), (13, 4969600), (16, 4037800), (20, 3230240), (25, 2584192), (26, 2484800), (32, 2018900), (40, 1615120), (50, 1292096), (52, 1242400), (64, 1009450), (65, 993920), (80, 807560), (100, 646048), (104, 621200), (128, 504725), (130, 496960), (160, 403780), (200, 323024), (208, 310600), (260, 248480), (320, 201890), (325, 198784), (400, 161512), (416, 155300), (520, 124240), (640, 100945), (650, 99392), (800, 80756), (832, 77650), (1040, 62120), (1300, 49696), (1553, 41600), (1600, 40378), (1664, 38825), (2080, 31060), (2600, 24848), (3106, 20800), (3200, 20189), (4160, 15530), (5200, 12424), (6212, 10400), (7765, 8320)]